2522981 has 2 divisors, whose sum is σ = 2522982. Its totient is φ = 2522980.

The previous prime is 2522977. The next prime is 2522983. The reversal of 2522981 is 1892252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2464900 + 58081 = 1570^2 + 241^2 .

It is a cyclic number.

It is not a de Polignac number, because 2522981 - 2² = 2522977 is a prime.

It is a super-2 number, since 2×2522981² = 12730866252722, which contains 22 as substring.

Together with 2522983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2522983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261490 + 1261491.

It is an arithmetic number, because the mean of its divisors is an integer number (1261491).

2^2522981 is an apocalyptic number.

It is an amenable number.

2522981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2522981 is an equidigital number, since it uses as much as digits as its factorization.

2522981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 2522981 is about 1588.3894358752. The cubic root of 2522981 is about 136.1354799011.

The spelling of 2522981 in words is "two million, five hundred twenty-two thousand, nine hundred eighty-one".